Last two wires in SV-ECM

[6adan]

I have everything hooked up to the engine except the red and black wires for the voltage meter. I am not sure where the best place to connect these wires or if the red wire should be fused. It may be in the instructions and I just have not found it yet. Can someone answer this for me?

Thanks Dannie

 

[lgabriel]

I'm assuming you're talking about the EMS D37P1 and D37P2 voltmeter inputs.

Install manual rev T page 7-35 is the relevant page.

I don't see a recommendation to fuse the inputs, however...where you intend on monitoring your voltage has some bearing on this decision.

My voltmeter leads are basically attached to the battery terminals directly--I therefore chose to run them through fuses as close to the batteries as possible before going on to the EMS.

If you do this plan, there is some discussion here about residual current drain.

 

[lgabriel]

Also, upon referring to the colors of the stock EMS harness...the black wire you're talking about is not D37P2 but most likely D37P5 which is an EMS ground.

Here's the page that talks about sensor grounds (7-34).

 

[jakej]

All the grounds are common to each other, it doesn't really matter which one you use 

ps - just thought I'd add this to stop any confusion.

Jake J